Patents Assigned to NISSAN MOTOR CO., LTD and SEIMI CHEMICAL CO., LTD.
  • Positive electrode material and cell for nonaquous electrolyte secondary battery
    Publication number: 20020004170
    Abstract: A positive electrode active material for a nonaqueous electrolyte secondary battery includes at least a lithium-deficient manganese layered composite oxide represented by the general formula Li1−xMnO2−&dgr;. A lithium deficiency quantity x is in the range of 0.03<x≦0.5. An oxygen nonstoichiometry quantity &dgr; is equal to or smaller than 0.2.
    Type: Application
    Filed: February 26, 2001
    Publication date: January 10, 2002
    Applicant: NISSAN MOTOR CO., LTD. and SEIMI CHEMICAL CO., LTD.
    Inventors: Fumio Munakata, Tatsuhiro Fukuzawa, Yasuhiko Ohsawa, Yuuji Tanjo, Takuya Mihara, Takashi Kimura, Kazuo Sunahara, Manabu Suhara
  • Positive electrode material and battery for nonaquous electrolyte secondary battery
    Publication number: 20010024753
    Abstract: A positive electrode active material for a nonaqueous electrolyte secondary battery includes at least a lithium-containing manganese layered composite oxide represented by the general formula Li1-xMn1-yMyO2-&dgr;. The lithium-containing manganese composite oxide is deficient in lithium with respect to the stoichiometric composition of a layered crystal structure represented by the general formula LiMeO2. Part of Mn is replaced by a substitute metal such as Co, Ni, Fe, Al, Ga, In, V, Nb, Ta, Ti, Zr, Ce or Cr.
    Type: Application
    Filed: February 26, 2001
    Publication date: September 27, 2001
    Applicant: NISSAN MOTOR CO., LTD and SEIMI CHEMICAL CO., LTD.
    Inventors: Fumio Munakata, Tatsuhiro Fukuzawa, Yasuhiko Ohsawa, Yuuji Tanjo, Takuya Mihara, Takashi Kimura, Kazuo Sunahara, Manabu Suhara